Oscillations and Waves (AIIMS Physics): Questions 10 - 14 of 50

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Question number: 10

» Oscillations and Waves » Displacement Relation for a Progressive Wave

Appeared in Year: 2003

MCQ▾

Question

An earthquake generates both transverse (S) and longitudinal (P) sound waves in the earth. The speed of S waves is about 4.5kms and that of P waves is about 8.0kms . A seismograph records P and S waves from an earthquake. The first P wave arrives 4.0 min before the first S wave. The epicenter of the earthquake is located at a distance of about –

Choices

Choice (4) Response
a.

250 km

b.

25 km

c.

2500 km

d.

5000 km

Question number: 11

» Oscillations and Waves » Doppler Effect in Sound

Appeared in Year: 1999

MCQ▾

Question

A siren emitting sound of frequency 500 Hz is going away form a static listener with a speed of 50msec . The frequency of sound to be heard directly from the siren is –

Choices

Choice (4) Response
a.

434.2 Hz

b.

484.2 Hz

c.

256.5 Hz

d.

589.3 Hz

Question number: 12

» Oscillations and Waves » Standing Waves in Strings and Organ Pipes

Appeared in Year: 1999

MCQ▾

Question

If vibrations of a string are to be increased to a factor of two, then tension in the string must be made –

Choices

Choice (4) Response
a.

Eight times

b.

Half

c.

thrice

d.

Four times

Question number: 13

» Oscillations and Waves » Speed of a Wave

Appeared in Year: 2002

MCQ▾

Question

The velocities of sound at the same pressure in two monatomic gases of densities ρ1 and ρ2 are V1 and V2 respectively. If ρ1ρ2=4 , then the value of V1V2 is?

Choices

Choice (4) Response
a.

2

b.

14

c.

4

d.

12

Question number: 14

» Oscillations and Waves » Standing Waves in Strings and Organ Pipes

Appeared in Year: 2004

MCQ▾

Question

An organ pipe closed at one end has fundamental frequency of 1500 Hz. The maximum number of overtones generated by this pipe which a normal person can hear is –

Choices

Choice (4) Response
a.

14

b.

9

c.

6

d.

13

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